Gas-regulator



Patented Oct. 20, 1885.

E. M. GODDARD.

GAS REGULATOR.

(No Model.)

d Z r W .5 A 1 W m m m a J J F i E Q, T f a M 1 h n "n M M T M U Z 7/ 1 t N u 1 d m W w m m fl 2% W W t 1 W WW m U ITED STATES PATENT OFFICE.

ELIJAH M. GODDARD, OF HOLYOKE, MASSACHUSETTS.

GAS-REGU LATO R.

SPECIFICATION forming part of Letters Patent No. 328,480, dated October 20, 1885. Application filed August 31, 1885. Serial No. 175,725. (No model.)

To all whom it may concern.-

Be it known that 1,.ELIJAH M. GODDARD, a citizen of the United States, residing at. Holyoke, Hampden county, State of Massachusetts, have invented a new and useful Improvement in Gas-Regulators, of which the following is a specification.

My invention relates to that class of regulators adapted to be interposed between the meter and the service-pipe and in which the operation of a valve is governed by a partially-submerged balloon float to which it is attached; and my improvements consist in the combination and construction as hereinafter described, and more particularly pointed out in the claims.

My invention is fully illustrated in the accompanying drawings, in which Figure I is a vertical section through the center of the device. Fig. II is an enlarged side view of the valve with a portion of the stern connected thereto. Fig. III is a plan of the top of the valve with a part of the valve-stem, and Fig. IV is an enlarged detail view.

A is a case for containing the glycerine or other fluid, in which is partially submerged the float B.

C is a tube superimposed to the valve-casing, and having its upper end above the highest level of the glycerine.

D is a valve-casing, preferably in the form of a globe, having pipe-orifices upon opposite sides, through the one (2 of which the gas enters the casing from the meter, and through the one 01 of which it passes to the burners.

The casing D is divided by a diaphragm, E, provided with a valve opening, e, in a vertical line with the lower open mouth of tube 0, and approximately of the same size. Below diaphragm E, and parallel to it, is a diaphragm, F, having an opening, f, directly below the one 6 and coinciding with it in size. The opening f is beveled below outwardly, as seen in Fig. I, to form a valve-seat.

G is a chamber below diaphragm F, and having a bottom, H, sufficiently removed from diaphragm F to permit a vertically-moving valve to play between them.

his a port opening into chamber G from casing D upon the side of diaphragm E toward the exit 02.

I is a cup-shaped valve adapted to play between the diaphragms E F, and close the open- A receptacle, and I make no claim to such; but

in my device the valve-stem J is flexibly attached to the top of the peculiar-shaped valve I, which is adapted by the diaphragm E F, the valve-seat f, the chamber G, port h, and open -mouth tube 0 to operate automatically and sensitively with the slightest increase or decrease in the gas-pressure felt upon either side of diaphragm E, to seat itself andwork smoothly independently of any aberration of the float, and by the cap K to the top of tube 0 serving also as a guide to stem J. The momentum of a jet of gas is prevented from being exerted upon a limited area of the float to give an irregular movement thereto, and is diffused to act only in its lifting capacity upon all of the surface of the float. By the adjustable feature of said cap K the size of the upper mouth of tube 0 may be changed in effect to govern the sensitiveness of the float to changes in the gas-pressure.

The valve I is a hollow cylinder, closed at its upper end and open at its lower. Upon its lower edge is a beveled valve-face, y, conforming to the seat f in diaphragm F, while its top corner is beveled to cause it always to enter the opening 0 of diaphragm E, the flexible connection of the stem J to the valve causing said stem to be aligned by the valve itself with the axis of tube 0, so that the proper working of the valve is independent of any oscillation of the float B. The length of the valve I is proportioned to the space between the diaphragms E F, so that when the orifice e is closed by the top of the valve the one f is also closed by the seat The side of the valve works loosely through orifice f, and to prevent downward pressure of gas passing along the sides of the valve into chamber G and acting upon theflange g, and to prevent any degree of vacuum in chamber; G, aport, h, is formed into the globe. D, as shown, which, when the valve is entirely closed, permits a pressure beneath it equal to that in the pressure-column of tube 0, and which pressure, by, the escape of gas to the burners, is reduced with that in the tube 0, so that the valve I remains always balanced.

The bottom H is at such distance from the diaphragm F as to stop the top of, the valve fromsleaving said diaphragm.

To form a convenient flexible connection of stem J to valve I, the lower end of stem J is formed into a ball, 13, truncated upon opposite sides; and let into a..socket,.-m,lin the top of the valve, having walls corresponding to thezflat "sides of ball. '5 and slightlyzr'emoved fromsaid sides when the ballis in its socket, as seen in Fig. 111, .sothat the valve may oscillate upon said-ball, but so that when the valve=stem is .'rotated by-handthe valve also rotates. This is of advantage to permit of gum or "foreign substance beingcleaned from rim 9 and seatf,

to insure a perfect seat to the valve, as -.well as to permit the cylindrical sides of the valve-to be cleaned without removing thevalvefrom itsqcasing.

Abinding-spring or a band, 0, (shown in section, .Fig. I, and in profile, Fig. II, and left off in Fig. 1H,) incloses the stem, rests on the shoulder formed-by the ball 6, and is fast- :ened at the ends to the top of the valve, so

forming-a socket-joint, permitting the valve to oscillate,-and compelling it to rotate with the a stem.

The cap K consists of a deflecting top, '70,

adapted to extend over the mouth of tube 0 when the cap is in place, a cylindrical body perforated with ports Z, and a screw-threaded end, 1). The upper end of tube 0 is correspondingly tapped, and by the milled top k the ;cap K is screwed to open the ports Zto any desired extent.

The cap K maybe made to screw over the tube 0, if desired, instead of within it, as shown.

Now, having described my invention, what .I claim is- 1. The within-described improvement in gas-pressure regulators, consisting of a case, A, a partially-submerged float, B, a valvestem operatively connected to .said float, and a guide, 'K, within the float for said valvestem, substantially as shown, in combination with a vertical tube, 0, open at its lower end, a globe, D, two diaphragms, E F, provided with openings, e f, and relatively arranged, as shown, a chamber, G, with stop H, a port, h,

connecting said chamber with the globe D, and a closed top cylindrical valve, I, flexibly connected with a valve-stem, J, and adapted, as shown and described, to-reciprocate to close both diaphragms E '2. Ina gas-pressure regulator, the combi- -nation,with acase, A, a float, B, a valve-stem,

J, and a valve-actuated by said float in connectionwith a diaphragm and globe beneath said float, of a joint consisting of --a'ba'll, z,

upon. the end of stenl J, truncated upon-each side, aico-rresponding socket, m, axially arranged in the valve, having fiat sides corre- .sponding tothose of ball i and slightly removed therefrom, as shown and described,

and band 0, arranged, as shown, to hold the therein, perforated to make a-guide to the valverod, and-projecting beyond the side of tube C for the purpose, as described, of receiving the momentum of a jet of gas upon a fixed surface and of distributing'said gas simultaneously upon all sides of the float. V

ELIJ AH M. GODDARD. V

Witnesses:

R. F. HYDE, F. R. RICHMOND. 

